EP1817216B1 - Soupape a actionnement electromagnetique, en particulier dans un systeme de freinage d'un vehicule a moteur - Google Patents

Soupape a actionnement electromagnetique, en particulier dans un systeme de freinage d'un vehicule a moteur Download PDF

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Publication number
EP1817216B1
EP1817216B1 EP05803250A EP05803250A EP1817216B1 EP 1817216 B1 EP1817216 B1 EP 1817216B1 EP 05803250 A EP05803250 A EP 05803250A EP 05803250 A EP05803250 A EP 05803250A EP 1817216 B1 EP1817216 B1 EP 1817216B1
Authority
EP
European Patent Office
Prior art keywords
valve
armature
pusher element
housing
motor vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05803250A
Other languages
German (de)
English (en)
Other versions
EP1817216A1 (fr
Inventor
Dietmar Kratzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1817216A1 publication Critical patent/EP1817216A1/fr
Application granted granted Critical
Publication of EP1817216B1 publication Critical patent/EP1817216B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems

Definitions

  • the invention relates to an electromagnetically operable valve for a brake system of a motor vehicle, according to the preamble of one of claims 1 or 2.
  • Such an electromagnetically operable valve is known, for example from the FR 2 847 326 A1 , This valve has a rotationally symmetrical armature, which rests with an end face on a valve plunger which actuates the valve closing member on a sealing seat.
  • the rotation of the armature is not limited to its longitudinal axis, d. h., it is allowed inaccuracy with respect to the above-mentioned valve functions.
  • valve lifter With respect to the armature cooperating with the valve lifter, it should be noted that this is guided in a longitudinal bore of the valve housing, wherein a rotation of the valve lifter is permitted. Since a valve lifter with reasonable effort is not produce as an ideal symmetrical component, and thus has different material properties over its scope or has deviations in size, these differences can also adversely affect the valve function.
  • the object of the invention is to reduce the resulting by the permissible rotational degrees of freedom of the armature and the valve stem inaccuracies of the valve function.
  • a valve actuatable by permanent magnets is known with a plunger element for controlling the cross-section of a valve seat.
  • the plunger element is longitudinally movably received in a valve housing.
  • this valve housing means comprise two stationary block elements with extending in the longitudinal direction of the valve grooves.
  • the grooves form a guide for a fixedly arranged on the valve housing guide body.
  • the DE 32 03 533 A1 discloses a hydraulically actuated valve with attached electromechanical displacement sensor having a sleeve-shaped, provided with radial bores slider for controlling control cross sections.
  • the latter can be actuated by a transmission element.
  • the transmission member has a section with hexagonal profile, which penetrates a correspondingly shaped opening of a lock washer.
  • the lock washer secures the transmission member against rotation.
  • An electromagnetically operable valve according to the invention for a brake system of a motor vehicle has the advantage that the effects on the valve function caused by a rotation are prevented by limiting the rotation of the armature or the valve tappet about their respective longitudinal axis , This ensures that the valve parameters set and checked during valve assembly, at least in relation to the magne- tic tanker and the valve lifter, do not change during the subsequent handling or over the service life.
  • the invention is directed to structural design variants for the means for preventing rotation of the armature or the plunger element.
  • electromagnetically actuated valve 10 with pressure limiting is used in automotive brake systems with slip control, such as anti-lock and / or traction control.
  • the valve 10 has an elongate valve housing 11, in which a longitudinal bore 12th is trained.
  • the longitudinal bore 12 has in a discharge area 13 a plurality of longitudinal grooves 14, of which in the FIG. 1 only one longitudinal groove 14 can be seen.
  • the valve housing 11 is connected on the end side facing the outflow region 13 with a valve connection element 15.
  • the valve connection element 15 has an inlet 16 for a pressure medium and a check valve 18.
  • valve housing 11 On the valve housing 11 side facing an annular remindström Scheme 19 is formed, which cooperates with the longitudinal grooves 14, and circumferentially together with the valve housing 11 is surrounded by a radial filter element 20.
  • a dome-shaped extension 21 of the valve connection element 15 On a dome-shaped extension 21 of the valve connection element 15, a pot-shaped valve body 22 is pushed, which is circumferentially, with the exception of the longitudinal grooves 14, is pressed into the longitudinal bore 12 of the valve housing 11.
  • the valve body 22 communicates via a stepped bore 23 and an inlet bore 24 arranged in the valve connection element 15 with the inlet 16 for the pressure medium.
  • a conical seat 26 is formed in the stepped bore 23. This seating area 26 cooperates with a dome-shaped end 27 of a tappet element 28, so that a sealing seat can be achieved when the end 27 is lowered on the seating area 26.
  • the plunger element 28 has, on the side facing the valve body 22, a first section 29 provided with a plurality of different outer diameters, which is connected to a cylindrical section 30.
  • a compression spring 32 On the shoulder 31 formed between the two sections 29, 30, the one end of a compression spring 32 abuts, which is supported with its other end on the facing end face 33 of the valve body 22.
  • an anchor 35 At the section 29 opposite side is located on the end face of the plunger element 28, an anchor 35 at.
  • the armature 35 which is located in the extension of the valve housing 11, is enclosed by a cap 36, which rests in its inner periphery partially on the valve housing 11 and is connected thereto by means of a weld 37.
  • the armature 35 is disposed axially displaceable within the cap 36 by a small amount in the longitudinal direction of the valve 10 and cooperates with the tappet element 28.
  • the cap 36 or the armature 35 is surrounded by a coil element 38, which is connected to a cup-shaped magnet housing 39 with the valve housing 11 by crimping on a mounting flange 41.
  • the exciter coil 40 of the coil element 38 can be electrically energized or contacted via two terminal lugs 42, 43.
  • valve 10 described so far can be used with its end opposite the coil element 38 in a valve block, not shown, which has an inlet and an outlet channel, which is connected to the inlet 16 and via the radial filter element 20 with the return flow 19 of the valve 10.
  • valve 10 When energized excitation coil 40, the valve 10 is open, which means that the compression spring 32 pushes the plunger element 28 with its end 27 of the valve body 22, and so a flow of pressure medium via the inlet 16, the inlet bore 24 and the outflow area 13 in the direction the remindström Jardines 19 allows.
  • energized coil element 38 When energized coil element 38, however, the end 27 of the plunger element 28 is pressed in the direction of the seat 26 to allow a corresponding throttling or preventing the flow of pressure medium.
  • the cross section of the plunger element 28, as shown in FIG. 2 best seen, four, each offset by 90 degrees to each other arranged guide portions 47.
  • the guide portions 47 engage, so that rotation of the plunger member 28 is avoided about its longitudinal axis 45.
  • pressure compensating areas 49 between the plunger element 28 and the bore 12 of the valve housing 11 in order to be able to displace pressure medium when the plunger element 28 and the armature 35 move.
  • These pressure-medium compensation regions 49 are formed by rounded longitudinal sides 50 of the tappet element 28.
  • valve 55 has been omitted for reasons of simplification on a graphic representation of the electrical part or the bobbin.
  • the valve 55 differs from the valve 10 in particular by an inserted into the longitudinal bore 56 of the valve housing 11 b guide body 57.
  • the longitudinal bore 56 an annular groove-shaped recess 58 on.
  • the guide body 57 is preferably designed as a plastic injection-molded body and has an annular shape, which makes it possible to subsequently introduce the guide body 57 into the recess 58.
  • the guide body 57 On the side facing the plunger element 59, the guide body 57 in the region of the Druckstoffaus GmbHs Societye 61 four, in each case at equal angular intervals arranged mold elements 62, between which a free space 63 is formed, in which engage the web-shaped portions 64 of the plunger element 59.
  • the sections 64 are formed the same over the entire length of the plunger element 59 in order to allow outside of the guide body 75 a guide of the plunger element 59 in the longitudinal bore 56 of the valve housing 11b.
  • the plunger element 59 in the region of the sections 64 has an extension which is matched to the inner diameter of the longitudinal bore 56.
  • a rotation of the plunger element 59 about its longitudinal axis 65 can thus be avoided.
  • the valve 55 with the exception of the recess 58, no further changes to the valve housing are required; in particular, in contrast to the valve housing 11, 11a, no longitudinal grooves or guide sections 47, 47a have to be formed.
  • valve 70 in contrast to the two valves 10 and 55, rotation of the plunger element 71 around its longitudinal axis is permitted, while rotation of the armature 74 about its longitudinal axis 72 is avoided. This is effected by a projection 75 on the valve housing 73, which is arranged on the armature 74 facing side.
  • the extension 75 is preferably in one piece on the valve housing 73 formed of the valve 70, and partially protrudes into a running in the longitudinal direction of the armature 74 Volumenaus Sammlungsnut 77.
  • Such volume compensation grooves 77 serve the displacement of pressure medium between the end faces of the armature 74 and are always present in such valves, ie, they need not be additionally formed in the invention.
  • the cap 79 of the valve 80 according to the invention in the region of the two volume compensation grooves 82, 83 of the armature 84 two beads 86 and 87 which engages in the respective Volumenaus GmbHsnut 82 and 83 in some areas. Even with the valve 80, a rotation of the armature 84 is thus prevented by its longitudinal axis 85 by positive locking.
  • a pin 94 is pressed in the blind hole 93.
  • the pin 94 engages in one of the Volumenaus GmbHsnuten 95 of the armature 91, and thus prevents rotation of the armature 91 about its longitudinal axis 96th
  • valves 10 and 55 rotation of the respective plunger element 28, 59 about their longitudinal axis 45, 65 is prevented.
  • rotation of the respective armature 74, 84 and 91 about their longitudinal axis 72, 85 and 96 is prevented.
  • valve 10 or 55 via a coupling-type connection with the armature in order to prevent rotation of the armature on the one hand, on the other hand, however, to allow a certain mobility to the plunger element.
  • couplings of the armature of the valve 70, 80 and 90 are possible with their respective plunger element.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Regulating Braking Force (AREA)

Claims (3)

  1. Soupape à commande électromagnétique (10 ; 55 ; 70 ; 80 ; 90) pour une installation de freins d'un véhicule automobile comportant un induit (35 ; 74 ; 84 ; 91) actionné par une bobine électromagnétique (38), l'induit coopérant avec un élément de poussoir (28 ; 28a ; 59 ; 71) installé de façon à coulisser longitudinalement dans un boîtier de soupape (11 ; 11a ; 11b ; 73 ; 92),
    l'élément de poussoir (28 ; 28a ; 59 ; 71) comportant un élément d'obturation (27) coopérant avec un siège d'étanchéité (26) pour commander le passage d'un agent de pression,
    caractérisée en ce que
    l'induit (35 ; 74 ; 84 ; 91) ou l'élément de poussoir (28 ; 28a ; 59 ; 71) sont munis de moyens pour éviter la rotation de l'induit (35 ; 74 ; 84 ; 91) ou de l'élément de poussoir (28 ; 28a ; 59 ; 71) autour de son axe longitudinal (45 ; 65 ; 72 ; 85 ; 96),
    les moyens comprenant au moins une broche de guidage (94) reliée au boîtier de soupape (92), cette broche pénétrant dans une cavité (95) réalisée dans la direction de déplacement de l'induit (91).
  2. Soupape à commande électromagnétique (10 ; 55 ; 70 ; 80 ; 90) pour une installation de freins d'un véhicule automobile comportant un induit (35 ; 74 ; 84 ; 91) actionné par une bobine électromagnétique (38), l'induit coopérant avec un élément de poussoir (28 ; 28a ; 59 ; 71) installé de façon à coulisser longitudinalement dans un boîtier de soupape (11; 11a ; 11b; 73; 92),
    l'élément de poussoir (28 ; 28a ; 59 ; 71) comportant un élément d'obturation (27) coopérant avec un siège d'étanchéité (26) pour commander le passage d'un agent de pression,
    caractérisée en ce que
    l'induit (35 ; 74 ; 84 ; 91) ou l'élément de poussoir (28 ; 28a ; 59 ; 71) sont munis de moyens pour éviter la rotation de l'induit (35 ; 74 ; 84 ; 91) ou de l'élément de poussoir (28 ; 28a ; 59 ; 71) autour de son axe longitudinal (45 ; 65 ; 72 ; 85 ; 96),
    les moyens comprenant un capuchon de boîtier (36) entourant l'induit (84), au moins par zones, avec du jeu radial et le capuchon de boîtier (36) comporte une moulure (86, 87) dirigée au moins vers l'induit (84), cette moulure pénétrant dans une cavité (82, 83) elle-même réalisée dans la direction de déplacement de l'induit (84).
  3. Soupape selon la revendication 1 ou 2,
    caractérisée en ce que
    la cavité est une rainure de compensation de volume (77 ; 82, 83 ; 95).
EP05803250A 2004-11-25 2005-10-12 Soupape a actionnement electromagnetique, en particulier dans un systeme de freinage d'un vehicule a moteur Not-in-force EP1817216B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410056892 DE102004056892A1 (de) 2004-11-25 2004-11-25 Elektromagnetisch betätigbares Ventil, insbesondere in einer Bremsanlage eines Kraftfahrzeuges
PCT/EP2005/055191 WO2006056509A1 (fr) 2004-11-25 2005-10-12 Soupape a actionnement electromagnetique, en particulier dans un systeme de freinage d'un vehicule a moteur

Publications (2)

Publication Number Publication Date
EP1817216A1 EP1817216A1 (fr) 2007-08-15
EP1817216B1 true EP1817216B1 (fr) 2008-08-06

Family

ID=35539652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05803250A Not-in-force EP1817216B1 (fr) 2004-11-25 2005-10-12 Soupape a actionnement electromagnetique, en particulier dans un systeme de freinage d'un vehicule a moteur

Country Status (5)

Country Link
EP (1) EP1817216B1 (fr)
JP (1) JP4594395B2 (fr)
CN (1) CN101065277B (fr)
DE (2) DE102004056892A1 (fr)
WO (1) WO2006056509A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007031855A1 (de) * 2007-07-09 2009-01-15 Robert Bosch Gmbh Ventilpatrone für ein Magnetventil
DE102009055365A1 (de) * 2009-12-29 2011-06-30 Robert Bosch GmbH, 70469 Magnetventil sowie Fahrerassistenzeinrichtung
DE102010002602A1 (de) * 2010-03-05 2011-09-08 Robert Bosch Gmbh Magnetventil zum Steuern eines Fluids
DE102011003783B4 (de) * 2011-02-08 2022-10-27 Robert Bosch Gmbh Magnetventil zum Steuern eines Fluids
DE102016208414A1 (de) * 2016-05-17 2017-11-23 Robert Bosch Gmbh Ventilpatrone für ein Magnetventil und zugehöriges Magnetventil
JP6805558B2 (ja) * 2016-06-08 2020-12-23 オムロンヘルスケア株式会社 流量制御弁およびその製造方法、ならびに血圧情報測定装置
DE102017208939A1 (de) * 2017-05-29 2018-11-29 Robert Bosch Gmbh Stellbares Magnetventil

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1293840A (en) * 1918-06-27 1919-02-11 Harry Quirk Valve.
GB416244A (en) * 1934-01-15 1934-09-13 British Thermostat Co Ltd Improvements in electro-magnetically operated valves
DE818715C (de) * 1948-12-29 1951-10-29 Samson Appbau Aktien Ges Elektromagnetventil
GB843891A (en) * 1957-09-06 1960-08-10 Tech Nucleaires Improvements in magnetic controlling devices
JPS5769173A (en) * 1980-10-13 1982-04-27 Sekisui Chem Co Ltd Stop valve
DE3203533A1 (de) * 1982-02-03 1983-08-04 Robert Bosch Gmbh, 7000 Stuttgart Hydraulisches einbauventil
JPS6159315U (fr) * 1984-09-26 1986-04-21
JPH0573378U (ja) * 1992-03-13 1993-10-08 日信工業株式会社 電磁弁装置
JP3580953B2 (ja) * 1996-07-02 2004-10-27 株式会社鷺宮製作所 ３方向電磁弁
DE19757088A1 (de) * 1997-12-20 1999-06-24 Bosch Gmbh Robert Hydraulisches Steuerventil
SE0200409D0 (sv) * 2002-02-13 2002-02-13 Siemens Elema Ab Method of Controlling a Valve Element and Valve Assembly
DE10253769B4 (de) * 2002-11-19 2014-05-15 Robert Bosch Gmbh Elektromagnetisch betätigtes Ventil, insbesondere für hydraulische Bremsanlagen von Kraftfahrzeugen

Also Published As

Publication number Publication date
DE502005004974D1 (de) 2008-09-18
JP2008520924A (ja) 2008-06-19
CN101065277B (zh) 2011-11-23
WO2006056509A1 (fr) 2006-06-01
DE102004056892A1 (de) 2006-06-01
CN101065277A (zh) 2007-10-31
EP1817216A1 (fr) 2007-08-15
JP4594395B2 (ja) 2010-12-08

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